Home / 8,115.10-11,199.35-4,756.70

Finding the Fourth Proportional to 8,115.10, 11,199.35 and 4,756.70

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Solution

The fourth proportional to 8,115.10, 11,199.35 and 4,756.70 is: 6,564.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.10 : 11,199.35 = 4,756.70 : x
  2. Step 2: Convert to fraction form
    8,115.10/11,199.35 = 4,756.70/x
  3. Step 3: Cross multiply
    8,115.10x = 11,199.35 × 4,756.70
  4. Step 4: Simplify right side
    8,115.10x = 53,271,988.04
  5. Step 5: Solve for x
    x = 53,271,988.04/8,115.10
  6. Step 6: Final answer
    x = 6,564.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.